On behalf of the board and members of the Canadian Association of Science Centres, I would like to take this opportunity to congratulate Canadian scientist Dr. Arthur B. McDonald for receiving the Nobel Prize in Physics on October 6, 2015. Dr. McDonald shares this year’s prize with Dr. Takaaki Kajita for the discovery of neutrino oscillations, which shows that neutrinos have mass.

Neutrinos are one of the most important building blocks of the universe and critical to our understanding of the universe. The question of whether or not neutrinos have mass has been debated among physicists for decades. This discovery required a change in basic understanding of physics.

Dr. McDonald is the director of the Sudbury Neutrino Observatory (SNOLab) located in Sudbury, Ontario, which is featured in an exhibit at Science North.